GB798609A - Improvements in and relating to methods and apparatus for cutting electrically conductive materials - Google Patents
Improvements in and relating to methods and apparatus for cutting electrically conductive materialsInfo
- Publication number
- GB798609A GB798609A GB3475453A GB3475453A GB798609A GB 798609 A GB798609 A GB 798609A GB 3475453 A GB3475453 A GB 3475453A GB 3475453 A GB3475453 A GB 3475453A GB 798609 A GB798609 A GB 798609A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workpiece
- electric
- cutting
- screw
- electrically conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/003—Making screw-threads or gears
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
798,609. Cutting by spark or arc erosion. SPARCATRON, Ltd. Dec. 20, 1955 [Dec. 14, 1953], No. 34754/53. Class 83 (4). A method of cutting a screw-thread or helical groove in a workpiece 4 of electrically conductive material by electric spark and/or arc discharges, comprises employing an inclined cutter 20 arranged to rotate in consonance with the workpiece and formed on its periphery with parallel annular grooves 25 and interposed continuous or discontinuous ribs 26. For machining a screw-thread on a bar workpiece 4, the latter is mounted in chuck 3 rotated through gearing 8, 9 by an electric motor 10, and connected at 28 to a source of electric current which may be interrupted direct current or unidirectional current pulses of predetermined period and waveform or time-spaced discharges from a capacitance. The disc-like cutter electrode 20 which is connected by a brush 27 to the other side of the electric supply, is mounted on a shaft 23 driven by means of a belt 22. The shaft 23 is mounted in a carriage 19 which is adapted to be traversed along the bed 1 of the machine by a lead screw 15 driven through gearing 16, 17 by the electric motor 10. During operation the work zone is bathed with electrolyte or dielectric fluid. For producing internal threads a cutter electrode of less diameter than the hole is used. The invention is of particular use with workpieces of hard metal such as metal carbides, tool steels and stainless steels. Specifications 637,872, 780,121 and 780,242 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3475453A GB798609A (en) | 1953-12-14 | 1953-12-14 | Improvements in and relating to methods and apparatus for cutting electrically conductive materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3475453A GB798609A (en) | 1953-12-14 | 1953-12-14 | Improvements in and relating to methods and apparatus for cutting electrically conductive materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB798609A true GB798609A (en) | 1958-07-23 |
Family
ID=10369560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3475453A Expired GB798609A (en) | 1953-12-14 | 1953-12-14 | Improvements in and relating to methods and apparatus for cutting electrically conductive materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB798609A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109915A (en) * | 1961-06-08 | 1963-11-05 | Cincinnati Milling Machine Co | Method of and apparatus for machining work at elevated temperature |
| US4583433A (en) * | 1982-04-06 | 1986-04-22 | Fanuc Ltd | Turning control apparatus and method |
| RU2482942C2 (en) * | 2011-06-24 | 2013-05-27 | Сергей Константинович Федоров | Method of cutting thread at part |
| RU2486994C2 (en) * | 2011-06-24 | 2013-07-10 | Сергей Константинович Федоров | Method of cutting thread on part |
| RU2772341C1 (en) * | 2021-07-19 | 2022-05-18 | Сергей Константинович Федоров | Method for making a thread on a part |
-
1953
- 1953-12-14 GB GB3475453A patent/GB798609A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109915A (en) * | 1961-06-08 | 1963-11-05 | Cincinnati Milling Machine Co | Method of and apparatus for machining work at elevated temperature |
| US4583433A (en) * | 1982-04-06 | 1986-04-22 | Fanuc Ltd | Turning control apparatus and method |
| RU2482942C2 (en) * | 2011-06-24 | 2013-05-27 | Сергей Константинович Федоров | Method of cutting thread at part |
| RU2486994C2 (en) * | 2011-06-24 | 2013-07-10 | Сергей Константинович Федоров | Method of cutting thread on part |
| RU2772341C1 (en) * | 2021-07-19 | 2022-05-18 | Сергей Константинович Федоров | Method for making a thread on a part |
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